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Extracavity third-harmonic generation at 213nm of a passively Q-switched Pr:YLF laser
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Abstract
We report on short pulse deep ultraviolet laser from an extracavity third harmonic generation passively Q-switched (PQ) Pr:YLF laser operating at 213nm. By compensating the thermal lens effect of the laser crystal, optimizing the cavity length and utilizing Co:MgAl2O4(MALO) as the saturable absorber, we obtain the highest pulse output power at 213nm from a PQ Pr:YLF laser. Under pumping with a fiber coupled blue laser diode array, we realized 11.87ns pulses at a repetition rate of 15KHz from a 7.5mm long cavity at an average output power of 53.1mW at 213nm. This is the highest PQ pulse deep UV at 213nm generated by extracavity third harmonic generation of a passively Q-switched Pr:YLF laser.
Springer Science and Business Media LLC
Title: Extracavity third-harmonic generation at 213nm of a passively Q-switched Pr:YLF laser
Description:
Abstract
We report on short pulse deep ultraviolet laser from an extracavity third harmonic generation passively Q-switched (PQ) Pr:YLF laser operating at 213nm.
By compensating the thermal lens effect of the laser crystal, optimizing the cavity length and utilizing Co:MgAl2O4(MALO) as the saturable absorber, we obtain the highest pulse output power at 213nm from a PQ Pr:YLF laser.
Under pumping with a fiber coupled blue laser diode array, we realized 11.
87ns pulses at a repetition rate of 15KHz from a 7.
5mm long cavity at an average output power of 53.
1mW at 213nm.
This is the highest PQ pulse deep UV at 213nm generated by extracavity third harmonic generation of a passively Q-switched Pr:YLF laser.
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